the boy retired from nasa about seven years ago. >> oh, wow. >> moved back to silver spring and has no memory of what happened to him when he was 14. >> you were part of hollywood's second golden abl en able -- ag. it is hard to compare that with previous decades. >> they tell me about that but at the time, cope pole la and steven spielberg and i were getting fired every day. anyone that fires spielberg off of "jaws," cope pole la was being fired every day off of "the godfather" and warner brothers was after my scalp because this exorcist was taking so long. it was all experimental. no one had ever done this stuff. like to show breath in a room, in the old days when they did that they filmed at a place called the glen dale ice house, where they made huge blocks of ice, you know, and that was gone. so, what i did was i took a set, about as big as this room and i put gigantic air conditioners over the top of it. we turn on the air conditioners a the night a-- at night and th morning, 30 below zero. >> how you got the idea for it. >> we had to experiment with a lot of stuff and today, if